Sr Cybersecurity Engineer

GM Financial•Irving, TX

6d•Hybrid

About The Position

Innovation isn’t just a talking point at GM Financial, it’s how we operate. By joining our team, you’ll work in a mission-focused environment with specialized teams, including Engineering, Threat Intelligence, Vulnerability Management, Incident Response, Firewall, Governance, Risk, Architecture and Offensive Security. These teams collaborate to identify, manage and respond to threats, all while driving innovation across the environment. Cybersecurity is central to our strategic vision, so you’ll benefit from exceptional leadership visibility, with direct reporting lines to the CEO. This structure ensures your work is recognized and supported at the highest levels, while also enabling bold innovation and the adoption of cutting-edge technologies. Shape the future of Cybersecurity at GM Financial, with the freedom to explore, the tools to build and the support to thrive. This position will be posted until filled.

Requirements

Knowledge of TCP/IP networking, OSI model and IP subnetting
Knowledge of analysis tools like Bro/Zeek or Suricata, and ability to perform analysis of associated network logs
Knowledge of the NIST Incident Response Life Cycle and the MITRE ATT&CK Framework
Knowledge of Windows operating systems and general knowledge of Unix, Linux, and Mac operating systems
Knowledge of cloud incident response on platforms like Azure
Hands‑on experience responding to security incidents in cloud and on-prem environments
Experience writing and optimizing Splunk queries for investigation and threat hunting across various data sources
Ability to use scripting and automation to acquire evidence, investigate at scale, and accelerate response actions
Experience translating investigations into repeatable response processes, documentation, and improvement opportunities for detection and prevention
Demonstrated ability to communicate across multiple levels of stakeholders
Ability to document and summarize technical evidence and findings
Good interpersonal, verbal, and written communication skills across various mediums
Detail oriented with good analytical skills and ability to formulate decisions based on evidence gathering
Ability to exercise prudent judgment and offer knowledgeable recommendations
Ability to work both independently and in a team environment
Ability to manage multiple projects, tasks, and investigations
Ability to work in sensitive situations
Be a reputable representative of the department
Ability to use AI tools (e.g., Microsoft Copilot) to support daily work
Skills in evaluating AI outputs for accuracy, compliance, and bias
Experience integrating AI into workflows to improve efficiency or insights
Familiarity with AI assisted research, summarization, and content generation
Understanding of responsible AI use, including ethics and data protection
3-5 years of experience in large and complex business environments with a successful track record working directly with senior level management preferred
3-5 years of experience in one or more of the following domains: Cybersecurity, Information Security, Network Engineering, or Network Operations, Information Technology, Application Development preferred
High School Diploma or equivalent required
Bachelor’s Degree in related field or equivalent work experience strongly preferred

Nice To Haves

One or more security related certifications, such as CISSP, CCNP-Security, GIAC, CEH, or CPTS highly preferred

Responsibilities

Participate in incident investigations, covering detection, containment, eradication, recovery, and post-incident reviews
Perform analysis of various log sources, SIEM alerts, IDS/IPS alerts, host activity, and network traffic to identify suspicious or unauthorized activity
Act as the senior escalation point for complex investigations, providing investigative direction and response strategy
Develop and standardize incident response playbooks to improve consistency and efficiency
Identify and codify attacker TTPs and IOCs, feeding them into detection pipelines and IR playbooks
Stay current with evolving attack techniques and security technologies to design, build, and continuously refine cloud detections and alerts across Azure and Microsoft 365
Participate in an on‑call rotation to support timely response to security incidents outside of standard business hours